Adjustable Blower-Fan Mount for Prusa i3 Greg's Wade Extruder (Tweaked version)

thingiverse

I modified the fan mount from http://www.thingiverse.com/thing:104688, adding several useful enhancements such as: a simple way to install it without fully unscrewing the extruder screws; a housing for the M3 nut; and more space between the mobile bracket and other parts. I also included links to more compatible fan ducts (*5/Dec/2013) and added a better fan duct specifically for my J-head MKV (duct1.stl, *27/Nov/2013). You can see pictures of PLA and ABS positions, and the design is compatible with other fan ducts like http://www.thingiverse.com/thing:196463, http://www.thingiverse.com/thing:137673, and http://www.thingiverse.com/thing:104688. The instructions for assembly include printing with PLA on the STL position without any support type, heating a M3 nut to place it in the M3 housing, using a M3x20 or larger screw, fixing to the extruder body with 2 M4x20 or larger screws, and securing a 40x40x10mm fan with 4 M3x10 screws without nuts (*Note: after several ABS prints, the support may deform due to heat, so I reprinted in ABS).